按括号中的要求完成句子，每个空格填一个单词。

1. He likes French fries. (改为一般疑问句)

    ___________he ___________ French fries?

2. Are those your erasers? (进行否定回答)

    No,___________ ___________.

3. Her hat is on the table. (就画线部分提问)

    ___________ ___________ her hat?

4. My ruler is green. (就画线部分提问)

    ___________ ___________is your ruler?

5. These are my books. ( 改为单数形式)

    This ___________my ___________.

一般情况下，我国北方城市冬季的大气污染程度（）于夏季的大气污染程度。